homescreen/src/main.cpp

   1 /*
   2  * Copyright (C) 2016, 2017 Mentor Graphics Development (Deutschland) GmbH
   3  * Copyright (c) 2017, 2018 TOYOTA MOTOR CORPORATION
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *      http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 #include <QGuiApplication>
  19 #include <QCommandLineParser>
  20 #include <QtCore/QUrlQuery>
  21 #include <QtGui/QGuiApplication>
  22 #include <QtQml/QQmlApplicationEngine>
  23 #include <QtQml/QQmlContext>
  24 #include <QtQml/QQmlComponent>
  25 #include <QtQml/qqml.h>
  26 #include <QQuickWindow>
  27 #include <QTimer>
  28
  29 #include <weather.h>
  30 #include <bluetooth.h>
  31
  32 #include "applicationlauncher.h"
  33 #include "statusbarmodel.h"
  34 #include "mastervolume.h"
  35 #include "homescreenhandler.h"
  36 #include "hmi-debug.h"
  37
  38 #include <qpa/qplatformnativeinterface.h>
  39 #include <wayland-client.h>
  40
  41 #include "wayland-agl-shell-client-protocol.h"
  42 #include "wayland-agl-shell-desktop-client-protocol.h"
  43 #include "shell.h"
  44
  45 struct shell_data {
  46         struct agl_shell *shell;
  47         struct agl_shell_desktop *shell_desktop;
  48 };
  49
  50 static void
  51 agl_shell_desktop_application(void *data,
  52                               struct agl_shell_desktop *agl_shell_desktop,
  53                               const char *app_id)
  54 {
  55         HomescreenHandler *homescreenHandler = static_cast<HomescreenHandler *>(data);
  56
  57         if (homescreenHandler)
  58                 homescreenHandler->addAppToStack(app_id);
  59 }
  60
  61 static void
  62 agl_shell_desktop_state_app(void *data,
  63                             struct agl_shell_desktop *agl_shell_desktop,
  64                             const char *app_id,
  65                             const char *app_data,
  66                             uint32_t state,
  67                             uint32_t role)
  68 {
  69         HomescreenHandler *homescreenHandler = static_cast<HomescreenHandler *>(data);
  70
  71         if (homescreenHandler && state == AGL_SHELL_DESKTOP_APP_STATE_DESTROYED)
  72                 homescreenHandler->appTerminated(app_id);
  73 }
  74
  75 static const struct agl_shell_desktop_listener shell_desktop_listener = {
  76    agl_shell_desktop_application,
  77    agl_shell_desktop_state_app
  78 };
  79
  80 static void
  81 global_add(void *data, struct wl_registry *reg, uint32_t name,
  82            const char *interface, uint32_t)
  83 {
  84         struct shell_data *shell_data = static_cast<struct shell_data *>(data);
  85
  86         if (!shell_data)
  87                 return;
  88
  89         if (strcmp(interface, agl_shell_interface.name) == 0) {
  90                 shell_data->shell = static_cast<struct agl_shell *>(
  91                         wl_registry_bind(reg, name, &agl_shell_interface, 1)
  92                 );
  93         }
  94
  95         if (strcmp(interface, agl_shell_desktop_interface.name) == 0) {
  96                 shell_data->shell_desktop = static_cast<struct agl_shell_desktop *>(
  97                         wl_registry_bind(reg, name, &agl_shell_desktop_interface, 1)
  98                 );
  99         }
 100 }
 101
 102 static void
 103 global_remove(void *data, struct wl_registry *reg, uint32_t id)
 104 {
 105         /* Don't care */
 106         (void) data;
 107         (void) reg;
 108         (void) id;
 109 }
 110
 111 static const struct wl_registry_listener registry_listener = {
 112         global_add,
 113         global_remove,
 114 };
 115
 116 static struct wl_surface *
 117 getWlSurface(QPlatformNativeInterface *native, QWindow *window)
 118 {
 119         void *surf = native->nativeResourceForWindow("surface", window);
 120         return static_cast<struct ::wl_surface *>(surf);
 121 }
 122
 123 static struct wl_output *
 124 getWlOutput(QPlatformNativeInterface *native, QScreen *screen)
 125 {
 126         void *output = native->nativeResourceForScreen("output", screen);
 127         return static_cast<struct ::wl_output*>(output);
 128 }
 129
 130
 131 static void
 132 register_agl_shell(QPlatformNativeInterface *native, struct shell_data *shell_data)
 133 {
 134         struct wl_display *wl;
 135         struct wl_registry *registry;
 136
 137         wl = static_cast<struct wl_display *>(
 138                         native->nativeResourceForIntegration("display")
 139         );
 140         registry = wl_display_get_registry(wl);
 141
 142         wl_registry_add_listener(registry, &registry_listener, shell_data);
 143
 144         /* Roundtrip to get all globals advertised by the compositor */
 145         wl_display_roundtrip(wl);
 146         wl_registry_destroy(registry);
 147 }
 148
 149 static struct wl_surface *
 150 create_component(QPlatformNativeInterface *native, QQmlComponent *comp,
 151                  QScreen *screen, QObject **qobj)
 152 {
 153         QObject *obj = comp->create();
 154         obj->setParent(screen);
 155
 156         QWindow *win = qobject_cast<QWindow *>(obj);
 157         *qobj = obj;
 158
 159         return getWlSurface(native, win);
 160 }
 161
 162 static QScreen *
 163 find_screen(const char *screen_name)
 164 {
 165         QList<QScreen *> screens = qApp->screens();
 166         QScreen *found = nullptr;
 167         QString qstr_name = QString::fromUtf8(screen_name, -1);
 168
 169         for (QScreen *xscreen : screens) {
 170                 if (qstr_name == xscreen->name()) {
 171                         found = xscreen;
 172                         break;
 173                 }
 174         }
 175
 176         return found;
 177 }
 178
 179 static void
 180 load_agl_shell_app(QPlatformNativeInterface *native,
 181                    QQmlApplicationEngine *engine,
 182                    struct agl_shell *agl_shell,
 183                    const char *screen_name,
 184                     bool is_demo)
 185 {
 186         struct wl_surface *bg, *top, *bottom;
 187         struct wl_output *output;
 188         QObject *qobj_bg, *qobj_top, *qobj_bottom;
 189         QScreen *screen = nullptr;
 190
 191         if (is_demo) {
 192                 QQmlComponent bg_comp(engine, QUrl("qrc:/background_demo.qml"));
 193                 qInfo() << bg_comp.errors();
 194
 195                 QQmlComponent top_comp(engine, QUrl("qrc:/toppanel_demo.qml"));
 196                 qInfo() << top_comp.errors();
 197
 198                 QQmlComponent bot_comp(engine, QUrl("qrc:/bottompanel_demo.qml"));
 199                 qInfo() << bot_comp.errors();
 200
 201                 top = create_component(native, &top_comp, screen, &qobj_top);
 202                 bottom = create_component(native, &bot_comp, screen, &qobj_bottom);
 203                 bg = create_component(native, &bg_comp, screen, &qobj_bg);
 204         } else {
 205                 QQmlComponent bg_comp(engine, QUrl("qrc:/background.qml"));
 206                 qInfo() << bg_comp.errors();
 207
 208                 QQmlComponent top_comp(engine, QUrl("qrc:/toppanel.qml"));
 209                 qInfo() << top_comp.errors();
 210
 211                 QQmlComponent bot_comp(engine, QUrl("qrc:/bottompanel.qml"));
 212                 qInfo() << bot_comp.errors();
 213
 214                 top = create_component(native, &top_comp, screen, &qobj_top);
 215                 bottom = create_component(native, &bot_comp, screen, &qobj_bottom);
 216                 bg = create_component(native, &bg_comp, screen, &qobj_bg);
 217         }
 218
 219         if (!screen_name)
 220                 screen = qApp->primaryScreen();
 221         else
 222                 screen = find_screen(screen_name);
 223
 224         if (!screen) {
 225                 qDebug() << "No outputs present in the system.";
 226                 return;
 227         }
 228
 229         qDebug() << "found primary screen " << qApp->primaryScreen()->name() <<
 230                 "first screen " << qApp->screens().first()->name();
 231         output = getWlOutput(native, screen);
 232
 233         /* engine.rootObjects() works only if we had a load() */
 234         StatusBarModel *statusBar = qobj_top->findChild<StatusBarModel *>("statusBar");
 235         if (statusBar) {
 236                 qDebug() << "got statusBar objectname, doing init()";
 237                 statusBar->init(engine->rootContext());
 238         }
 239
 240         agl_shell_set_panel(agl_shell, top, output, AGL_SHELL_EDGE_TOP);
 241         agl_shell_set_panel(agl_shell, bottom, output, AGL_SHELL_EDGE_BOTTOM);
 242         qDebug() << "Setting homescreen to screen  " << screen->name();
 243
 244         agl_shell_set_background(agl_shell, bg, output);
 245
 246         /* Delay the ready signal until after Qt has done all of its own setup
 247          * in a.exec() */
 248         QTimer::singleShot(500, [agl_shell](){
 249                 agl_shell_ready(agl_shell);
 250         });
 251 }
 252
 253 int main(int argc, char *argv[])
 254 {
 255     setenv("QT_QPA_PLATFORM", "wayland", 1);
 256     setenv("QT_QUICK_CONTROLS_STYLE", "AGL", 1);
 257     QGuiApplication a(argc, argv);
 258     const char *screen_name;
 259     bool is_demo_val = false;
 260     struct shell_data shell_data = { nullptr, nullptr };
 261
 262     QPlatformNativeInterface *native = qApp->platformNativeInterface();
 263     screen_name = getenv("HOMESCREEN_START_SCREEN");
 264
 265     const char *is_demo = getenv("HOMESCREEN_DEMO_CI");
 266     if (is_demo && strcmp(is_demo, "1") == 0)
 267         is_demo_val = true;
 268
 269     QCoreApplication::setOrganizationDomain("LinuxFoundation");
 270     QCoreApplication::setOrganizationName("AutomotiveGradeLinux");
 271     QCoreApplication::setApplicationName("HomeScreen");
 272     QCoreApplication::setApplicationVersion("0.7.0");
 273     /* we need to have an app_id */
 274     a.setDesktopFileName("homescreen");
 275
 276     register_agl_shell(native, &shell_data);
 277     if (!shell_data.shell) {
 278         fprintf(stderr, "agl_shell extension is not advertised. "
 279                 "Are you sure that agl-compositor is running?\n");
 280         exit(EXIT_FAILURE);
 281     }
 282     if (!shell_data.shell_desktop) {
 283         fprintf(stderr, "agl_shell_desktop extension is not advertised. "
 284                 "Are you sure that agl-compositor is running?\n");
 285         exit(EXIT_FAILURE);
 286     }
 287
 288     std::shared_ptr<struct agl_shell> agl_shell{shell_data.shell, agl_shell_destroy};
 289     Shell *aglShell = new Shell(agl_shell, &a);
 290
 291     // import C++ class to QML
 292     qmlRegisterType<StatusBarModel>("HomeScreen", 1, 0, "StatusBarModel");
 293     qmlRegisterType<MasterVolume>("MasterVolume", 1, 0, "MasterVolume");
 294
 295     ApplicationLauncher *launcher = new ApplicationLauncher();
 296     launcher->setCurrent(QStringLiteral("launcher"));
 297     HomescreenHandler* homescreenHandler = new HomescreenHandler(aglShell, launcher);
 298     homescreenHandler->init();
 299
 300     agl_shell_desktop_add_listener(shell_data.shell_desktop, &shell_desktop_listener, homescreenHandler);
 301
 302     QQmlApplicationEngine engine;
 303     QQmlContext *context = engine.rootContext();
 304
 305     context->setContextProperty("homescreenHandler", homescreenHandler);
 306     context->setContextProperty("launcher", launcher);
 307     context->setContextProperty("weather", new Weather());
 308     context->setContextProperty("bluetooth", new Bluetooth(false, context));
 309
 310     // we add it here even if we don't use it
 311     context->setContextProperty("shell", aglShell);
 312
 313     /* instead of loading main.qml we load one-by-one each of the QMLs,
 314      * divided now between several surfaces: panels, background.
 315      */
 316     load_agl_shell_app(native, &engine, shell_data.shell, screen_name, is_demo_val);
 317
 318     return a.exec();
 319 }